How to Replace an Empty Ink Cartridge in the HP Deskjet 6540 Series Printer – an Illustrated Tutorial in 10 Steps – Replacethatpart.com
Amazon.com: DoorStepInk Remanufactured Ink in The USA Cartridge Replacements for HP 97 1 Color C9363 for HP DeskJet Series: 5740, 5940, 6520, 6540, 6620, 6830v, 6840, 6940, 6980, 9800 : Office Products
HP 6540 Ink | Deskjet 6540 Ink Cartridge
97 C9363WN Remanufactured Ink Cartridge Replacement for HP Deskjet 684 – discountinkllc
HP® 98 Black Original Ink Cartridge (C9364WN#140)
HP DeskJet 6540dt Tri-Color Ink Twin Pack Combo Pack (OEM)